Cadillac Escalade 1998–2002 — technical service bulletin
Bulletin 020421005 · NHTSA communication 634905 · issued Jun 1, 2002
Technical service bulletin
communication type
Power Train
component
1998–2002
model years
53
vehicle entries
Official summary
Some vehicles will not move when 4-wheel drive is requested, noise, shudder, poor performance, transmission / transfer case slips, transmission will not upshift, slips in 4-wheel drive. *tt
Vehicles covered
- 1999 Cadillac Escalade
- 2000 Cadillac Escalade
- 2002 Chevrolet Avalanche
- 1998 Chevrolet Blazer
- 1999 Chevrolet Blazer
- 2000 Chevrolet Blazer
- 2001 Chevrolet Blazer
- 2002 Chevrolet Blazer
- 1998 Chevrolet S10
- 1999 Chevrolet S10
- 2000 Chevrolet S10
- 2001 Chevrolet S10
- 2002 Chevrolet S10
- 1998 Chevrolet Silverado
- 1999 Chevrolet Silverado
- 2000 Chevrolet Silverado
- 2001 Chevrolet Silverado
- 2002 Chevrolet Silverado
- 1998 Chevrolet Suburban
- 1999 Chevrolet Suburban
- 2000 Chevrolet Suburban
- 2001 Chevrolet Suburban
- 2002 Chevrolet Suburban
- 1998 Chevrolet Tahoe
- 1999 Chevrolet Tahoe
- 2000 Chevrolet Tahoe
- 2001 Chevrolet Tahoe
- 2002 Chevrolet Tahoe
- 1998 GMC Jimmy
- 1999 GMC Jimmy
- 2000 GMC Jimmy
- 2001 GMC Jimmy
- 2002 GMC Jimmy
- 1998 GMC Sierra
- 1999 GMC Sierra
- 2000 GMC Sierra
- 2001 GMC Sierra
- 2002 GMC Sierra
- 1998 GMC Sonoma
- 1999 GMC Sonoma
- 2000 GMC Sonoma
- 2001 GMC Sonoma
- 2002 GMC Sonoma
- 1998 GMC Suburban
- 1999 GMC Suburban
- 2000 GMC Suburban
- 2001 GMC Suburban
- 2002 GMC Suburban
- 1998 GMC Yukon
- 1999 GMC Yukon
- 2000 GMC Yukon
- 2001 GMC Yukon
- 2002 GMC Yukon
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.